There are severe constraints on the supply side of the provision of infrastructure in Asia. The infrastructure financing gap between what is invested in Asia-Pacific (around US$48 billion) and what is needed (US$228 billion) is around US$180 billion every year.
Placed in the centre of a garden bed, they can be underplanted with low growing shrubs and bulbous plants for an harmonious effect; or underplanted with grass for a contrasting statement. Alternatively, the tree can be situated at the end of a long garden to draw visitors out into the garden.
Cottonwoods, aspens and poplars don't just have shallow roots, but also huge root systems that spread out over a great distance. The roots of these trees are incredibly aggressive and can cause extensive damage to anything they encounter, which is why they should never be planted near homes or other buildings.